Home / 12,721.44-19,087.64-6,882.16

Finding the Fourth Proportional to 12,721.44, 19,087.64 and 6,882.16

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Solution

The fourth proportional to 12,721.44, 19,087.64 and 6,882.16 is: 10,326.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.44 : 19,087.64 = 6,882.16 : x
  2. Step 2: Convert to fraction form
    12,721.44/19,087.64 = 6,882.16/x
  3. Step 3: Cross multiply
    12,721.44x = 19,087.64 × 6,882.16
  4. Step 4: Simplify right side
    12,721.44x = 131,364,192.50
  5. Step 5: Solve for x
    x = 131,364,192.50/12,721.44
  6. Step 6: Final answer
    x = 10,326.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.